403130020309 has 2 divisors, whose sum is σ = 403130020310. Its totient is φ = 403130020308.

The previous prime is 403130020303. The next prime is 403130020339. The reversal of 403130020309 is 903020031304.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 277679464209 + 125450556100 = 526953^2 + 354190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-403130020309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403130020303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201565010154 + 201565010155.

It is an arithmetic number, because the mean of its divisors is an integer number (201565010155).

Almost surely, 2^403130020309 is an apocalyptic number.

It is an amenable number.

403130020309 is a deficient number, since it is larger than the sum of its proper divisors (1).

403130020309 is an equidigital number, since it uses as much as digits as its factorization.

403130020309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

The spelling of 403130020309 in words is "four hundred three billion, one hundred thirty million, twenty thousand, three hundred nine".